A couple months ago, we shared some tips on using container planting in your garden to create a unique look for your landscape. If you chose to use supertunia in your containers as we suggested, they may not be looking as beautiful as they were in the spring. These plants will bloom without stopping from April until they freeze in the fall, creating hundreds of beautiful blooms on a single plant. To create so many blooms for such a long period of time takes a great deal of energy, so by mid-summer the blooms aren't as broad and the foliage not as large as it was. All you need to do to rejuvenate these flowers is to refertilize. Use a acid-producing liquid fertilizer that can be diluted with water and you have a quick and easy way to get more out of your supertunias.
This doesn't work with all plants, however, so be careful not to overfertilize other plants in your garden. For example, lantana is a beautiful plant with clusters of tiny flowers that thrive in the sunshine and heat and also make a great choice for container planting. However, over-fertilizing of lantana may inhibit its flowering. So be aware of what plants need fertilizing mid-summer and which don't to ensure you have the most beautiful blooms in your garden.